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Radiating point-type optical fiber smoke-sensitive fire detector

A fire detector and optical fiber smoke sensing technology, which is applied in fire alarms, instruments, alarms, etc., can solve the problems of high production and maintenance costs, complex structures, etc., and achieve the effects of low working voltage, low price, and not easy to age

Inactive Publication Date: 2012-08-01
铜陵晶点光科有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to overcome the defects and problems existing in the prior art of using electronic components to detect smoke, complex structure, and high production and maintenance costs, and to provide a device that prevents electronic components from detecting smoke, has a simple structure, and has low production and maintenance costs. Through-beam point-type optical fiber smoke detector

Method used

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  • Radiating point-type optical fiber smoke-sensitive fire detector
  • Radiating point-type optical fiber smoke-sensitive fire detector
  • Radiating point-type optical fiber smoke-sensitive fire detector

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0076] Embodiment: the number of light source 1 and light source modulator 5 is one, and one light source 1 acts on four front-end detection parts 11 at the same time:

[0077] see figure 1 – Figure 4 The front-end detection part 11 includes a smoke chamber 13, a transmitting card frame 6, a receiving card frame 7, a transmitting optical cable 2, a receiving optical cable 3, a transmitting plastic tube 8 and a receiving plastic tube 9, and the background processing part 12 includes a light source 1 and a light source modulator 5 and signal detection processor 4;

[0078] The light source 1 is a green LED, the power of the green LED is 20 milliwatts, the operating voltage is less than 3V, and the operating current is less than 10 mA. The transmitting optical cable 2 and the receiving optical cable 3 are communication-grade plastic optical cables. The optical fiber 10 is a communication-grade plastic optical fiber; the outside of the launch cable 2 is covered with a coaxial l...

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PUM

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Abstract

A radiating point-type optical fiber smoke-sensitive fire detector comprises a front-end detection part and a background processing part, wherein the front-end detection part comprises a smoke chamber, a transmitting card rack, a receiving card rack, a transmitting optical cable, a receiving optical cable, a transmitting plastic tube and a receiving plastic tube; and the background processing part comprises a light source, a light source modulator and a signal detection processor; the light source is a green LED, the transmitting and the receiving optical cables are communication plastic optical cables, the transmitting plastic tube and the receiving plastic tube are sleeved outside the transmitting and the receiving optical cables, the transmitting and the receiving card racks are sleeved outside the transmitting and the receiving plastic tubes, the end surfaces of both one end of the transmitting optical cable and one end of the receiving optical cable are level with openings at the top ends of the corresponding plastic tubes, the other ends are respectively connected with a light source detection processor and the signal detection processor, and the smoke chamber is covered outside the optical cables, the card racks and the plastic tubes. By adopting the design, electronic components are omitted, the radiating point-type optical fiber smoke-sensitive fire detector is suitable for inflammable and explosive occasions with strong electromagnetic radiation strength, can meet the requirements of fire-fighting alarm products, and has the advantages of high sensitivity, simple structure and low installation and maintenance costs.

Description

technical field [0001] The present invention relates to an automatic fire alarm device, in particular to a through-beam point-type optical fiber smoke detector, which is particularly suitable for eliminating defects of electronic components, reducing costs, improving sensitivity and facilitating maintenance, and has great practicality. sex. Background technique [0002] At present, the smoke detectors used for automatic fire alarm at home and abroad mainly include three types: photoelectric, ion, and infrared beam (laser). They all have many problems in use, and it is difficult to meet the needs of automatic fire alarm in today's fire protection. [0003] The problem with the photoelectric type is: Because of the electrical signal, it is not suitable for installation in places with flammable, explosive and high electromagnetic radiation intensity, and there are certain potential safety hazards Electronic components are prone to aging, and after aging, they are prone to ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G08B17/107G02B6/44
Inventor 张森
Owner 铜陵晶点光科有限公司
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